27.Salma takes 30 minutes from her home to reach her school on a bicycle. If the speed of the bicycle is 3 metres per second, calculate the distance from school to her home.
Answers
Step-by-step explanation:
Speed = 2m/s
Time taken to reach school = 15 minutes = 15 × 60 seconds = 900 seconds
Speed = (Distance travelled)/ (Time)
Distance = (Speed x Time)
= 2 x 900 =1800m
Also 1km= 1000m
Therefore 1800x (1/1000) = 1.8km.
The distance between her house and the school is 1.8 km.
please Mark me as Brainliest answer
Answer:
Simple Method/Long Method
Speed of cycle is 3m/s
So, in 1 minute she can cover
1min = 60 secs
1 sec = 3m distance covered
60 secs = (60 × 3) distance covered
= 180m distance covered
She can cover a distance of 180m in 1 minute
Distance she covers in 30 minutes
1 min = 180m distance covered
30 mins = (180 × 30) distance covered
= 5,400m distance covered
She covers a total distance of 5,400m to reach school
1km = 1,000m
1m = 1/1,000km
5,400m = 5,400/1,000km
= 5.4km distance covered
Advanced Method/Short Method
Distance = Speed × Time
Time = 30 × 60 = 1800 secs (Time in minutes × No. of seconds in a minute = Total number of seconds)
= 3min × 1800secs
= 5,400m / 5.4km
Abbreviations
m = Metres
km = Kilometres
mins/min = Minutes
secs/sec = Seconds
No. = Number